Expression of hepatic and ovarian antioxidant enzymes during estrous cycle in rats

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Title
Expression of hepatic and ovarian antioxidant enzymes during estrous cycle in rats
Author(s)
S Y Lee; J Y Lee; Soo Jin Oh; Hyoung-Chin Kim; S K Kim
Bibliographic Citation
Toxicology Letters, vol. 212, no. 3, pp. 329-336
Publication Year
2012
Abstract
The regulation of antioxidant enzymes has received increased attention in terms of protection from many diseases. Despite reports that administered estradiol derivatives can change antioxidant enzyme levels, comprehensive information is not available regarding the effects of the human menstrual cycle or the rat estrous cycle on the expression of the antioxidant enzyme system. The present study was performed to determine the expression levels of cytosolic antioxidant enzymes, including superoxide dismutase-1, catalase, glutathione peroxidase-1, glutathione reductase, peroxiredoxin (Prx)-1, Prx-2, thioredoxin-1, gamma-glutamylcysteine ligase catalytic subunit, alpha-class glutathione S-transferase (GST), pi-class GST, and mu-class GST, in the liver and ovaries of female rats during diestrus and proestrus. Our results indicate that hepatic expression of Prx-1 and Prx-2, and ovarian expression of alpha-class GST were increased significantly during the proestrus phase compared with the diestrus phase. These results suggest that the hepatic Prx family and ovarian alpha-class GST are sensitive to changes during the estrous cycle. Further studies are needed to determine the physiological significance of the regulation of the Prx family and alpha-class GST during the estrous cycle.
Keyword
Antioxidant enzymeEstradiolEstrous cycleLiverOvary
ISSN
0378-4274
Publisher
Elsevier
DOI
http://dx.doi.org/10.1016/j.toxlet.2012.06.006
Type
Article
Appears in Collections:
Ochang Branch Institute > Division of National Bio-Infrastructure > Laboratory Animal Resource & Research Center > 1. Journal Articles
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